I am going to say stick with Smith optics, and now with their new 'Interlock' system, one can change out the lens's and the arms simply, making for the ability to change up the look and application (sun, snow or foggy conditions).
I purchased my Methods (not interlock) for under $200.00 and they (like most others) come with a lifetime warranty. I also have a pair of Oakley's that i like a lot too, however i find the style(s) that Smith offers more flattering and more diverse. Also, their PR when returning a pair is fantastic.
Good luck and please let us know what you ended up choosing.
